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Attention: RHN Hosted will reach the end of its service life on July 31, 2017.
Customers will be required to migrate existing systems to Red Hat Subscription Management prior to this date.
Learn more here

The Manager is a JBoss Application Server application that provides severalinterfaces through which the virtual environment can be accessed and interactedwith, including an Administration Portal, a User Portal, and a RepresentationalState Transfer (REST) Application Programming Interface (API).

Previously upgrading from Red Hat Enterprise Virtualization Manager 3.0 to 3.1was not formally supported. This update fixes a number of known issues with theupgrade process. As a result upgrading from Red Hat Enterprise VirtualizationManager 3.0 to 3.1 is now supported for the majority of installations.

Known Issues:

* Upgrades of Red Hat Enterprise Virtualization 3.0 environments that contain V1format block (iSCSI or FCP) storage domains that (1) are larger than 250 GB insize and (2) were created in Red Hat Enterprise Virtualization 2.2, are notsupported. Changing the compatibility mode of a data center that contains suchstorage domains to 3.1 will result in a failure. A future update will correctthis issue. Please note that V1 block storage domains created using the REST APIin Red Hat Enterprise Virtualization 3.0 are unaffected. (BZ#893184)

For more information on upgrading to Red Hat Enterprise Virtualization Manager3.1 consult the Installation Guide: